120878181511688 has 16 divisors (see below), whose sum is σ = 227158207926480. Its totient is φ = 60302659397968.

The previous prime is 120878181511679. The next prime is 120878181511721. The reversal of 120878181511688 is 886115181878021.

It is a super-2 number, since 2×120878181511688² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17053915970 + ... + 17053923057.

It is an arithmetic number, because the mean of its divisors is an integer number (14197387995405).

Almost surely, 2^{120878181511688} is an apocalyptic number.

It is an amenable number.

120878181511688 is a deficient number, since it is larger than the sum of its proper divisors (106280026414792).

120878181511688 is a wasteful number, since it uses less digits than its factorization.

120878181511688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34107839476 (or 34107839472 counting only the distinct ones).

The product of its (nonzero) digits is 13762560, while the sum is 65.

The spelling of 120878181511688 in words is "one hundred twenty trillion, eight hundred seventy-eight billion, one hundred eighty-one million, five hundred eleven thousand, six hundred eighty-eight".